Latency

The Latency setting is the same as the Buffer setting that can be chosen under the Audio tab when Ardour is launched. 

Choosing the correct Latency setting depends upon several factors including: 

• Computer Hardware
• Sample Rate
• Audio Driver
• Amount of audio being processed

Low latency settings can be desirable when little or no delay is desired between the input and output.  However, it may not always be possible when running high track counts and/or higher sample rates.  The lower the latency setting, the less delay there is through the system.  Low latency settings, high sample rates, and high track counts can all place a larger processing load on the computer hardware.  A larger buffer size may be necessary in order for the computer hardware to process the audio problem free. 

Indications that the buffer size is set too low include audio dropouts, pops, clicks, or other artifacts.  It is possible for audio dropouts, pops, clicks, or other artifacts to get recorded into an audio file where they can be next to impossible to remove. 

It might be necessary to increase JACK's latency if your session grows. It is not necessary to restart JACK to change this, the samples setting can be changed from this menu.